To albebt l



3 Sheets-Sheet 1 INVENTOR leonard/K 15me/r ATTORNEY Jan. 3l, 1928,

' L. K. HEINER ET AL FLUID CLUTCH Filed Jan. '7, 1927 .N m ms@ mw ww w w @www2 W ,n WN N \N\ WMM "umm x w Mw NN n NW WN MW IH M M h @mw m M M. Nm n W .Hl WW MLN. .m TME E w ww NN v .Ian. 3l, 1,928.

L. K. HEINER ET AL FLUID CLUTCH Filed Jan. '7, 1927 3 Sheets-Sheet 2 ATTORNEY L. K. HElNER ET AL FLUID CLUTCH Filed Jan, '7. 1927 3 Sheets-Sheet 3 V'rants Patented l carre LEONARD KENNETH TdEilll/IB, AND "WILLIAM toli'lilLEY 0F PHELLIPSBURG,

KANSAS, KAN

Application lcd January 7, 1927.

rlhe invention primarily has for its object to provide a new and improved duid clutch mechanism in which the constituent parts are simple in constriiction and capable of economical manufacture, compact, and so arranged that desired efficient operation is assured Without loss of energy due to the conventionally conin'ion necessity of pumping' the iinporu'ided fluid through restricted openings in attaimnentof the clutching operation. A y

The invention further seeks` to provide a structure of the character' stated in which the parts are so designed and assembled as to be entirely counter-balanced, eliminating all unbalanced, off-center Weight. t

lin its more detailed nature the invention resides in the provision of a new and improved fluid clutch mechanism comprising` a. driving' shaft, a sliaft-to-be-driven, means carried by the driving: shaft and associated wwith the driven shaft and including shiftable Huid-resisted elements, freely movable when shifted to a movement non-effecting position but active when shifted to movement effecting.; positions to apply torque to the shaft-to-bc-driven in degree according to the load on said shaft--to-liie-driven and the fluid resistanceset up by the particular shift of said elements.

lVith the above and other objects in vieuT that will hereinafter' appear, the invention still further resides in the novel details of construction. combination and arrangement of parts, all of Which Will be first fully described,j then be particularly pointed out in the appended claims, reference beinp; had to the accompanying drawings9 in \vhich:-

Figure l is a vertical longitudinal section illustrating the invention in the idling or no rotation imparting position.

Figure 2 is a vieuT similar tolTigure 17 partsbeing@- in elevatioiu and illustrates the maximum torque applying position of the parts for imparting` maximum speed to the driven shaft.

Figure 3 a cross section taken on the line 3 3 on Figure l. i

Figure 4l is a detail cross section taken on the line 4,-4 on Figure l..

Figure 5 is a cross section taken ou the line 5-5 on Figure l.

Figure 6 is a detail perspective vievv of the shifter elements slidable on the driven shaft.

ASEIGNQRS OF UNE-FOURTH T0 ALBERT L. ELLIOT, 0F PIE-IILLIPSE'URG,

FLUD GIUTCH.

Serial No. 159,633.

Figure 7 is a detail perspective view i1- lust 1ating the driven shaft bearing securloclr washer.

Figure 8 is a detail perspective View showing' the shifter element guide Sleeve parts disassembled.

Figure 9 is a detail perspective view illustrating one Wobbler disk.

ln the following detailed description the :invention is particularly disclosed in one only of its inany possible adaptations as a fluid clutch mechanism for imparting rotation from a driving shaft'to a driven shaft at varying speeds according` to the needs and desire of the operator. llt should be understood however that other uses to `which the structure disclosed may be adapted are herein comprehended, as for example a drive shaft brake, a line shaft clutch, a lifting' or loweringl device clutchj or in fact any use occasioning the application of energy from one shaft to another in adjustable degree, or Where a rotating shaft'must be retarded or stopped.

By reference to the drawings in Which like numerals of reference indicate like parts in all of the figures7 it will be seen that l indicates the driving shaft to which rotation is imparted from any source according.;1 to the use to which the device is being;` put, as for example an automobile en- ;rine, and 2 the shaft-to-be-driven which is mounted in axial alipginnent With the drivshaft and indirectly connected with said driving shaft through the mechanism forming` the principal part of the invention and through the medium of Vwhich the driven shaft may be permitted to remain motionless or caused to rotate at a desired speed relatively to andv with the driving shaft.

The shaft l is provided With a head 3 recessed to receive the ball race d and is provided with a bearing; ring` 5.

rlhe end of the shaft 2 adjacent the shaft l is shoulderedto receive the bearing ring (3 which coacts with the race d in receivingr l the bearing balls 7", forming a suitable bearing` for the said shaft end in axial alignment with the shaft l.

A bearing head 8, recessed to receive a ball race 9 and bearing balls l() coacts With the hearing)v ringl 5 .in forming a suitable bearing; for the end ofthe shaft l and is equipped with a gland 11 through which said shaft end passes. The head 8 `is secured lll) at l2 to the main casing body 137 the main body portion of which is cylindrical and provided with filler plugs ld and a drain plug '15.

An extension housing l5 is secured to the main housing 13 by the flange connection l?, and between the flanges is secured a partition Wall 18 provided with intercoinnninicating` openings 19 and a central flanged opening. 2O equipped with the ball race and bearing balls 2l the purposeof which will presently appear.V v

'lhe remaining end o' the shaft 2 projects through an opening inthe casing extension 16, suitable ball bearings being.,` provided therefor as at 22 in the threaded washer 23 adjustable inthe flanged head 241 secured at 25 to the extension 16. rlhe washer 23 is adjustable to take up play in the bearings 22, 7,r and l0. To provide ior securing' the washer at desired adjustments theiiange of theliead 2st into which it is threaded is split in two directions as at 26 (see Figure T) and taper-threaded to receive the internally taper-threaded head 2T provide with a gland 28 through which the shaft Q passes and a tapered seat and packing 29. A set screw 30 may be employed to secure the head 27 against inadvertent rotation.

Secured as at 3l to the drivingv shalt head 3 is one halt' 32 oa two-part housing, the other halt 33 beingl flange secured at l/l to the tirst half. This composite housing is shaped to comprise a central hollow globelike portion 35 to snugly tit and torni a universal bearing,` for a wobbler heath hereinafter to be described. in det-ail, and an extended annular chamber portion divided, by a partition plate 36 clamped between the flanges of the halves, into two substantially fluid tight annular iiuid chambers 37 in each VVof which awobbler disk carried by the wobbler head operates iu a manner soon to be described.

Each compartment is accessible for Vfilling or emptying fluid (heavy oil preferably) into or from the composite housing; through a plurality of fluid tight screw plugs 38. j The wobbler head which has universal bearing` in the composite housing portion :l5 is constructed of three annular rings, a central ring 39 and two outer rings 4:0, all heing securely clamped together by clamp screws ll1, collectively providing a ball-like outer surface to snugly-movably lili the said housing portion 35 and having a central ai;- ial bore 42 and end recesses to accommodate the ball and ball race equipment Two'wobbler disks 4A: and l5 are carried by the Wobbler head, each operable in one `annulailuid chamber 37 of the composite housing. The disks are irusto-conitorm, the centers or apexes being cut away to assist in ilioriciing` the central bore 42. and they are placed back to back so that their imaginary centers, which would be formed by the apenes, are coincident. 'lhus any given radius ol one dish aligns :i diainetrically op` posite radius ot the other dish and an iinaginary line drawn through such radii will pass through the iniaginary center ot both disks which is also the geometrical center olf the wobbler head. 'lhe peripheral edges oi the disks snugly lit within 1the peripheral walls of the chambers 37.

l steel tube .is rotatably mounted .in the bore d2 oi the wobbler head by reason of having the bearing cones -l-T carried there` by in association with the bearing cquipment The sleeve has a Vlined head ed :u one end and is threaded At its other end to adjustably receive one oi the cones Al and a jamb nut d8a, a lock washer lll being interposed and provided with a i ion pre-- venting; teat to enter the slot 50 with which the sleeve is equipiied. liy this equipment n'ieans is provided to prevent uinlesirable play in the bearings d3.

les hereinbeiore stated the annular chambers 3? are lilled with a suitable resistance `fluid, preferably heavy oil, and each cham ber is provided with a cross or abutment wall 5 secured at 52 to the partition wall or plate 3G and designed to obstruct 'tree annular circulation of the oil. walls 5l are preferably diainctrically oppositely positioned in their respective chambers to provide oil :urige balance, und suugg'ly llt across the chambers to completely obstruct them.

Each dish fl-i and is provided with a slot to snuolj.v straddle its cooperative partition wall 5i and .it will be observed that the said disls and the wobbler head rotate with the shaft l and como-oliie liouffii but are not Yfree to rotate within that housing but only to wobble therein when said housing is rotated under certain conditions soon to be described.

Certain ot the liller and drain caps 25S may oe positioned at the positions olf the walls it desired to couisttiuiralc with he chambers 87 at both sides of' the saine and in this case, to iliacilitate such conuruinication, ouch wall 5l ma;v have a snugly fitting;v

sleeve and with the driving; shalt l, no wohbline of the wobhier unit is caused. and no rotation is imparted to i-hai't The sleeve 46 is however. positvely con-- lll) lio

Vnected to the shaft 2 through means soon to lbe described so that when that sleeve is rotated the shaft 2 will be rotated. To this heavy oil in degree according to the tilt of the sleeve and the disks44 45, and the application of torque to the shaft 2 to rotate the same at speeds relating to that of the `drive shaft in accordance with the tilt and resistance set up by the particular adjustment To accomplish this purpose, a rounded head 56 is keyed as at 57 on the shaft 2 and secured as at 58 against longitudinal movement. This head has laterally projecting trunnions 59 and the aXisof these trunnions passes through the imaginary center of the wobbler unit. The sleeve 46 has opposite slots 60 to receive the ends of the trunnions and a two-part sleeve member 61 snugly lits the sleeve 46 and surrounds the head 56. The halves of the sleeve member 61 each have an aperture 62 to fit a respect-ive trunnion 59, are secured together when mounted bypins 63, and conjointly mount a bearing pin 64 on which a cam roller 65 is rotatably mounted. j

`A shifter' sleeve 66 is slidable but not rotatable on the shaft 2 by reason of the set screw `and longitudinal slot equipment 67. The sleeve `has an end flange 68 rotatable in a groove in the shifter head 69 which has trunnions 70 engaged by the forked arms 71 secured as at 72 on the rocker shaft 73 Mio mounted in bearing 74 providedV in the housing extension 16 and by which the said sleeve may readily be shifted through the medium of the operating arm 75 secured on one end of the shaft 7 3 projected outside the housing.

The sleeve 66 is equipped with an upper advancing cam 7 6, adapted to engage the roller 65 to `tilt the sleeve 46 and wobbler `unit,and a lower receding cam77 which ure 1 the drive shaft, the composite housing and' the wobbler unit-rotate freely on the y sleeve 46. As the sleeve is tilted, the vdisks 441-45, moving' with the same out of their centered relation in their respective oil chambers 37, will be caused to wobble under `the resistance set up by the heavy oil and l because of the tilt and will apply torque to the shaft 2.

Obviously, the more the sleeve is shifted,

the more accentuated will be the wobble occasioned by the heavy oil resistance to freemovement, and the shaft 2 will be driven at a speed approximating that of the driving shaft 1 in degree according to the loaden thesaid shaft 2 and the degree of wobble of the wobbler unit.

It is tobe understood, of course, that the main housing 13, 16 is stationarily supported in any suitable manner and is filled with a .suitable lubricant, the caps 14 serving for the administration of such lubricant and the cap 15 to drain it from the housing.

' *From the foregoing description, taken in connection with the accompanying drawings, it is thought that the novel details of construction, manner of operation, and the advantages of the invention will be readil f apparent to those skilled in the art to whic it relates.

What we claim is:

1. In a paratus of the class described, a. drive sha t, al shaft to be driven positioned in'axial alignment with the drive shaft, a liquid filled housing carried by the drive shaft and rotatable therewith, and a wobbler unit wobble-mounted in the housing and adjustably associated with the driven shaft whereby when positioned in one position said wobbler unit will rotate freely about said `driven shaft, but when moved to other positions will be caused to wobble in degree according to its adjustedposition and apply torque to the shaft to be driven according to the resistance of the liquid, and means in the liquid filled housino` to obstruct free circulation of the liquid ttherein.

In apparatus of the class described, a drive shaft, a shaft to be driven positioned in axial alignment with the drive shaft, a liquid filled housing carried by the drive shaft and rotatable therewith, and a wobbler unit wobble-mounted in the housing and ladjustably associated with the `driven shaft whereby when positioned in one position said wobbler unit will rotate freely about said driven shaft, but when moved to other positions, will be caused to wobble in apply torque to the shaft to be driven aocording Ato the resistance of the liquid, means in the liquid filled housing to obstruct free circulation of the liquid therein, and said wobbler unit` having slotted portions asso- -ciated with said circulation obstructing means to permit wobbling of said unit within and relative to said housmg while pre `venting rotation of said unit relative to and within said housing.

3. In apparatus of the class described, a drive shaft, a shaft to be driven positioned in axial alignment with the drive shaft, a liquidlfilled housing carried by the drive shaft and rotatable therewith, and a wobbler unit wobble-mounted in the housing and" adjustably associated with'the driven shaft whereby when positioned in one position said wobbler unit will rotate freely about said driven shaft, but when moved to other positionsxwill be caused to wobble in degree ac@ cordiiig to its adjustedposition and apply torque to the shaft to be driven according to the resistance of the liquid, at least one cross partitionwall in the liquid filled housing to obstruct fi'ee circulation therein, a liquid Eller and closure capsecured in the housing and of a .diameter 4for serving` the filling;` of` liquid into or draining of liquid out of the housing at Aeach side of the partition wall. Y f

it. in apparatus ofthe class described, a drive shaft, a shaft to be driven positioned in axial alignment with the' di'ive shaft, a. liquid filledhousing carried by the drive shaft and rotatable therewith, and a wobbler unit wobble-mounted in the housing,` and adjustably associated with the driven shaft whereby when positioned in one position said wobbler unit will rotate freely about said driven shaft, but when moved to other positions will be caused to wobble in degree according vto its adjusted position and apply torque to the shaft to be driven accor-ding to the resistance of the liquid, at least one cross partition wall in the liquid filled housing, to obstruct free circulation therein, a liquid filler and closure cap secured in the housing and of a diameter for serving the filling` of liquid into or draining of liquid out of the housing` at each side of the partition Swall, said partition wall having a slotway therethrough in axial alignment with theV filler and closure cap, and a plugcarried by said 'can and ada ated when mounted to close the said slotway and when removed to facilitate filling or drainingof the housing,l by opening` said slotway. Y

lin apparatus vof the class described, a drive shaft, a shaft to be drivenpositioned in axial alignment with .theV drive shaft, a liquid filled housing carried by the drive shaft and rotatable therewith, and a wobbler unit wobble-mounted in the housing and adjustabl'y associated with the drivenr shaft ywhereby when positioned in one position said wobbler unit will rotate freely about said driven shaft, but when moved to other positions will be caused to wobble in degree according to its adjusted position and apply torquev to the shaft to be driven according tothe resistance of the liquida sleeve hav- ,ing trunnion bearingon the shaft to be driven, means for freely,rotatablymounting the sleeve in the wobbler unit whereby said 4unit ina-y freely rotate V,about said sleeve when said sleeve isV in concentric relation to the shaft-tobedriven, and means to tilt the sleeve out of such concentric relation and cause the saine to lwobble and Aapply torque to said shaft-to-be-driven.

6. ln apparatus Vof the class described, a

. drive shaft,'a shaft to be driven positionedA V,in axial alignment withthe drive shaft, a liquidfilled housingv carried by the drive sha-ft 'and rotatable therewith, and -a wobbler unit wobble-mounted in the housing and adjustably associated with the driven shaft whereby when positioned in one position `said wobbler unit will rotate freely about said driven shaft, but when moved to other positions will be caused to wobble in degree according` to its adjusted position and apply torque to the shaft to be driven according to the resistance of the liquid, a sleeve having trunnion bearing' on the shaft to be driven, kincans for freely rotatably n'iouiitinp,` the sleeve in the wobbler unit whereby said unit `clnding` a cam sleeve slidable on the shaftto-be-driven and having` a cani face, and a roller carried by the sleeve and adapted to be engaged by the cani face foi` the purposes specified.

ln apparatus of the class described, a drive shaft, a shaft to be driven positioned in axial alignment with the drive shaft, a. liquid filled housing carried by the drive shaft and rotatable therewith, a wobbler unit,wobble-iiiouiited in the housing and adjustably associated with the driven shaft whereby when positioned in one position said wobbler unit will rotate freely about said driven shaft, but when iiioved to other positions will be caused to wobble in degree torque to the shaft to be driven accordingl to the resistance of the liquid, a sleeve having trunnion bearing; on the shaft to be driven, means for freely rotatably mount-ing` the sleeve in the wobbler unit whereby said unit may freely rotate about said sleeve when said sleeve is in concentric relation with the sliaft-to-be-driven, means to tilt the sleeve o-ut of said concentric relation and cause the same to wobble and apply torque to said shaft-tc-be-driven, and a two part sleeve litting` within the first mentioned sleeve and having portions for slide l'uidinp,` the cam sleeve and preventing displacement thereof.

8. ln apparatus of the class described, a driving element, a driven element, a. resistance liquid iiiipounding` housing carried by one element and having` resistance liquid y therein, a wobbler unit carried by the other elementaiid associated with the liquid iinpounding` housing to be acted on by the liquid'theiein to cause said other element to rotate with the one element at varied speeds according' to the degree of resistance of said liquid, said wobbler unit eoiiiprisinfr a globular body and disks projecting` therefrom to be engaged by the resistance liquid, and said housing,` having` a globular body receiving portion and an extended annular chainber in which the disks move.

9. In apparatus of the class described, a driving element, a driven element, a resistance liquid impounding housing carried by one element and having resistance liquid therein, a Wobbler unit carried by the other element and associated vvith the liquid impounding housing to be acted on by the liquid therein to cause said other element to rotate with the one element at varied speeds according to the degree ot resistance ot said liquid, said Wobbler unit comprising a globular body and disks projecting therefrom to be engaged by the resistance liquid, said housing having a globular body receiving portion and an extended annular chamber in Which the disks move, and at least one abutment Wall obstructing tree liquid circulation in the extended housing portion and associated with the disks to permit Wobble movement in the housing extension but prevent rotation ot said disks relatively to said housing. n

Al0. lln apparatus ot' the class described, a driving element, a driven element, a resistance liquid impounding housing carried by one element and having resistance liquid therein, a Wobbler unit carried by the other element and associated With the liquid impounding housing to be acted on by the liquid therein to cause said other element to rotate With the one element at varied speeds according to the degree of resistance oit said liquid, said Wobbler unit comprising a globular body and a pair ot dished disks carried by the globular' body and projecting there- ,trom to be engaged by the resistance liquid, and said housing having a globular body receiving portion and an extended annular chamber in Which the dished disks move, and an annular ring secured in the housing and separating the extended chamber into two annular liquid impounding chambers each accommodating one of the said dished disks.

`11. In apparatus of the class described, a driving element, a driven element, a resist- Vance liquid impoun-ding housing carried by one element and having resistance liquid -therein, a Wobbler unit carried by the other element and associated with the liquid impounding housing to be acted on by the liquid therein to cause said other element to rotate with the one element at varied speeds according to the degree of resistance ot said liquid, said Wobbler unit comprising a globular body and a pair of dished disks carried yby the globular body and projecting theredisks, the imaginary centers of the two dished disks and the center of the globular body being coincident.

12. 'ln apparatus of the class described, a driving element, a driven element, a resistance liquid impounding housing carried by one element and having resistance liquid therein, a Wobblcr unit carried by the other element andvassociated With the liquid impounding housing to be acted on by the liquid therein to cause said other' element to rotate with the one element at varied speeds according to the degree ot resistance of said liquid, said vvobbler unit comprising a globular body and a pair of dished disks carried by the globular body and projecting there- `from to be engaged by the resistance liquid, and said housing having a globular body receiving portion and an extended annular chamber in Which the dished disks move, an annular ring secured in the housing and separating the extended chamber into tvvo annular liquid impounding chambers each accommodating" one oi' the said dished disks, and at least one abutment vvall in each of the two annular chambers obstructing free liquid circulation therein and associated With the respective disk to permit wobble movement in the said chamber but prevent rotation relative to said housing, said abutment walls being positioned diametrically opposite.

13. In apparatus of the class described, a driving element, a driven element, a resistance liquid impounding housing `carried by one element and having resistance liquid therein, a Wobbler unit carried by the other element and associated with the liquid impounding housing to be acted on by the liquid therein to cause said other element to rotate With the one element at varied speeds according to the degree or' resistance of said liquid, said wobbler unit comprising a globular body and disks projecting'theretrom to be engaged by the resistance liquid, and said housing `having a globular body receiving portion and an ext-ended annular chamber in which the disks move, said globular body comprising a plurality of rings collectively presenting a globular outer surface, and said disks being clamped between the said rings to be carried by and move With said ring formed globular body. y

14. In apparatus of the class described, a driving element, a driven element, a. resistance liquid impounding housing carried by one element and having resistance liquid therein, a Wobbler unit carried by the other `rotate With the one element at varied speeds according to the degree ot resistance of said liquid, said Wobbler unit comprising a globular body and a pair ot dished disks carried by the globular body and projecting therefrom to be engaged by the resistance liquid, and said housing having a globular body receiving port-ion and an extended annular chamber in which the dished disks move, an annular ring secured in the housing and separating the extended chamber into two annular liquid impounding chambers each accommodating one of the said dished disks, the imaginary centers of the two dished disks and the center of the globular' body being coincident, a sleeve having trunnion bearing on the shaft to be driven, means for freely rotatably mounting the sleeve in the wobbler unit whereby said unit may freely rotate about ,aid sleeve when said sleeve is in concentric relation with the shaft-to-bedriven, and means to tilt the sleeve out of such concentric relation and cause the same to wobble and apply torque to said shaft-to-bedriven.

l5. In apparatus of the class described, a driving` element, a driven element, a resistance liquid inipounding housing carried by one element and having resistance liquid therein, a wobbler unit carried by the other element and associated with the liquid iinpounding housing to be acted on by the liquid Vtherein to'cause said other element to rotate with the one element at varied speeds according to the degree of resistance of said liquid, said wobbler unit comprising a globular body and a pair of dished disks carried by the globular body and projecting therefrom to be engaged by the resistance liquid, and said housing having a globular body receiving port-ion and an extended annular chamber in which the dished disks move, an annular ring secured in the housing and separating the extended chamber into two annular liquid impounding chambers each accommodating one of the said dished disks, the imaginary centers ofA the two dished disks and the center of the 'globular body being coincident, a sleeve having trunnion bearing on the shaft to be driven, means for freely rotatably mounting the sleeve in the Wobbler unit whereby said unit may freely rotate aboutsaid sleeve when said sleeve is in concentric relation with the shaft-to-bedriven, means to tilt the sleeve out of such concentric relation and cause the saine and the wobbler unit to wobble, and apply torque to said shaft-to-be-driven, said tilting means including a cam sleeve slidable on the shaftto-be-driven and having a cam face, and a roller carried by the sleeve and adapted Vto be engaged by the cam face for the purposes specified.

16. In apparatus of the class described, a drive shaft, a. shaft-to-be-driven positioned in axial alignment with the vdrive shaft, a liquid tight casing enclosing the adjacent ends of the shafts, said drive shaft having an enlarged headon the end thereof adjacent the shaft-to-be-driven, a thrust bearing ear- Learned ried by the driving` shaft head and forming bearing for the adjacent shaft end, a. liquid filled housing secured to and rotatable with said drive shaft head, and a wobbler unit wobble-mounted in the housing and adjustably associated with the driven sha tt whereby when positioned in one position said wobbler unit will rotate freely about said driven shaft, but when .moved to other positions will be caused to wobble in degree :iccording to its adjusted position and apply torque to the shaft to be driven according to the resistance of the liquid.

ll. .in apjiaraturl: of the class described, a driving element, a driven element, a resistance liquid impounding housing carried by one clement a; f" having resistance liquid n by the other thereina wobbler unit cai i und associated with the liquid iing' housing to be acted on by the liquid therein to cause said other element to rotate with the one element at varied speeds accordino` i" 2 the degree of resistance ot said liquid, said wobbler unit comprising a globular body and a pair of dishcd disks carried by the globular body and projecting therefrom to be engaged by the resistance liquid, and said housing having a globular body receiving portion and an extended annular chamber in which the d' led disks inove, au annular ring' secured in the housing and separating tue extended chanil'ier into two annular liquid inipouuding chambers each accommodating one of the said disbed disks, said housi; being :formed of two parts tiange scciucd together to forni therebeteen said extended annular chamber and said globular body, t said annular ring being clamped between said housing` llanges. 18. in apparatus of the class described, a drive shaft, a shaft-to-be-driven positioned in arial alignment with the drive shaft, a liquid tight casing enclosing the adjacent ends of the shafts, said drive shaft having an enlarged head on the end thereof adjacent the shaft-to-be-driven, a thrust bearing carried by the driving shaft head and forniing bearing :for the adjacent shaft end, a liquid filled housing secured to and rotatably with said drive shaft head, a wobbler unit wobble-mounted in the housing and adjustably associated with the driven shaft whereby when positioned in one position said wobbler unit will rotate freely about said driven shaft, but when moved to other positions will be caused to wobble in degree according to its adjusted position and apply torque to the shaft-to-be-driven according` to the resistance of th-e liquid, means to tilt-adjust the position of said wobbler unit, said tilting means including' :i cani sleeve sliduble on the shaft-to--be-driven and having a cani face, a roller irried by the sleeve and adapted to be engaged by the cam face, said liquid tight casing being formed in two parts llange secured together, said parte constituting la `in axial alignment with the drive shaft, a

liquid tight casing .enclosing the adjacent ends of the shafts, said drive shaft having an enlarged head on the end thereof adjacent the shaft-tobedriven, a thrust bearing carried by the driving shaft head and forming bearing for the adjacent shaft end, a liquid filled housing secured to and rotatable with said drive shaft head', a wobbler unit wobble-mounted in the housing and adjust- .ably associated with the driven shaft whereby when positioned in one position said wobbler unit will rotate freely about said driven shaft, but when moved to other posi tions will be caused to wobble in degree according to its adjusted position and apply torque to the shaftto-bedriven according to the resistance of the liquid, said wobblerl unit comprising a globular body and a pair of dished disks carried lby the globular body and projecting therefrom to be engaged by the resistance liquid, and said housing having a globular body receiving portion and an extended annular chamber in which the dished disks move, an annular ring secured in the housing and separating the extended chamber vinto two annular liquid impounding chambers each accommodating one of the said dished disks, the imaginary centers of the two dished disks and the center of the globularI body being coincident, a sleeve having trunnion bearing on the shaft-to-bedriven, means for freely rotatably mounting the sleeve in the wobbler unit whereby said unit may freely rotate about `said sleeve when said sleeve is in concentric relation to the shaft-tobedriven, means to tilt the sleeve out of such concentric relation and cause the same to wobble and apply torque to said shaftto-be-driven, said tilting means including a `cam sleeve slidable on the shaftto-be-driven and having a cam face, and a roller carried by the sleeve and adapted to be engaged by the cam face for the purposes specified.

20. ln apparatus of the class described, a driving element including a resistance liquid impounding housing having resistance liquid therein, a driven ele-ment, a wobbler unit carried by the driven element and associated with the liquid impounding housing to be acted on by the liquid therein to cause said driven element to rotate with the driving element at varied speeds according to the degree of resistance of said liquid, said wobbler unit comprising a globular body and disks projecting therefrom to be engaged by the resistance liquid, and said housing having a globular body receiving portion and an extended annular chamber in which the disks move.

LEONARD KENNETH HEINER. lVlLLIAM MGKINLEY MOORE. 

